Siemens MCCBs: The Trusted Switchgear Solution for OEMs, Panel Builders, and Electrical Contractors

Introduction:

Safety in the electrical industry is not an option, it is a necessity. Power failure, equipment damage and fire risk can be costly to businesses by running into large amounts of money, affecting production, and even risking lives. This is what makes OEMs, contractors and panel builders employ high-quality switchgear solutions like MCCB to protect their electrical circuits against overloads and short circuits.

The correct selection of MCCB could be a critical factor in safety, sustenance of business and economic efficiency in the long term. MCCBs are offered by many brands but Siemens MCCB is extraordinary and a combination of high engineering, convenient fulfillment of global quality demands, and the level of protection technology gives a frame of reference.

If you are an OEM manufacturer (Original Equipment Manufacturer), panel builder, or electrical contractor, making a decision to use Siemens MCCBs will be a game-changer in your projects. Understand the main characteristics, types, and uses that define why Siemens MCCBs are the reliable choice when it comes to circuit protection in any manufacturing industry.

Siemens MCCB

What Makes Siemens MCCB Important for Electrical Safety?

Siemens MCCBs offer perfect protection and ease of installation, as they are used to give predictable performance under harsh conditions, overload, short-circuit protection, long service life, and are also flexible in configuration. This makes them the preferred choice for OEMs, contractors, and panel builders who require reliability without compromise.

1.  Excellent Overload Protection

Electric circuits are limited in carrying power. Electric circuits are not good frequency distributors. Siemens MCCBs instantly detect overloads using the thermal trip and terminate the overload, protecting against insulation stress and the risk of fire as well as the costly shutdown.

2. High-Performance Short Circuit Interruption

Short circuits lead to hazardous fault currents. Siemens MCCBs are capable of interrupting faults as short as 150 kA and isolating devices, protecting a vast system of equipment within milliseconds to avoid massive electrical failures within the network.

3. Adjustable Protection Settings

Most MCCBs manufactured by Siemens include adjustable trip settings, which engineers can use to customize protection of unique loads. This minimises nuisance tripping and achieves the best possible safety in a number of industrial or commercial applications.

4. Heavy Current Handling Capability

Siemens MCCBs deal with currents of between 16A- 3200A, which is far beyond MCB capacity. They make an excellent choice when it comes to industrial plants, large feeders, and panel boards to operate safely when subjected to heavy electrical loads.

Siemens MCCB Important Technical Features

Minimum Installation Depth - Siemens MCCBs, including 3VJ and 3VA models are specifically designed with a smaller panel depth (Mirror depth as low as 70 mm at some ratings), permitting dense panel arrangements without sacrificing the thermal dissipation and breaker operation.

Extensive Accessory Integration - Support Siemens-engineered accessories such as 5 A auxiliary contacts, 2 A shunt trip, under-voltage releases, motor operators, plug-in connection modules. They are installable without taking the breaker out of the panel.

Tool-Free Maintenance & Replacement - The modular Siemens MCCB frame is tool-free to access and replace units on the front, i.e., trip units, terminals, and covers, making the service downtime take only a couple of minutes.

Multi-Standard Voltage Compatibility – International design standard, such as International Electrotechnical Commission 60947-2 and Underwriter Laboratories UL 489 and a range of applications up to 690 VAC or 500 VDC, which is globally applicable.

Arc Energy Reduction – The 3VA arc energy reduction options such as Zone Selective Interlocking (ZSI) and Arc Energy Reduction Maintenance Switch (ARMS) are fitted on certain 3VA models to provide better personnel safety when working on the LV equipment when the circuit is live.

Built-in Status Indicators - Trip position indicators, mechanical ON /OFF flag and fault type identification windows are contained in the breaker front in order to give instant diagnostics using no external devices.

Rugged Environmental Performance - Rugged to perform at 95 percent relative humidity, IP40/IP55 front protection (model specific), thermal shock between -25 °C to +70 °C, IEC climate category B.

Digital Communication Ready - The 3VA model is compatible with integration of PROFIBUS, PROFINET, and Modbus TCP protocols, and can be used to measure energy in real time, trip log, and operate remotely using Siemens SENTRON power management systems.

Overview of Models Available for Siemens MCCBs:

Siemens MCCBs (Moulded Case Circuit Breakers) are designed to provide secure electrical protection through industrial uses, commercial uses, as well as OEMs. Siemens has various MCCB models to meet various requirements, whether it is a high-end modular system or an economical compact system. These are designed to protect against overload, short-circuit, and motor starters. Each of the 3VA, 3VM and 3VJ models offers safety, performance, and ease of installation to both guarantee uninterrupted operations and to meet worldwide standards.

1. Siemen 3VA MCCB

Siemens 3VA MCCB has a modular, highly flexible system of more than 500 accessory parts. They are designed to bring maximum uptime due to a high degree of selectivity, leading to ease of integration that includes, offers integrated measurement, energy management systems compatibility, space-saving design, and support throughout the engineering design process.

2. Siemens 3VM MCCB

Siemens 3VM MCCB  series is designed to provide reliable performance at up to 1600A, in addition to having high short-circuit breaking, and is flexibly installed. The 3VM range has an industry-leading trip unit technology and a comprehensive accessory portfolio, optimised to provide consistent protection in every industrial application and allowing simple integration with the rest of the distribution system.

3. Siemens 3VJ MCCB

Siemens 3VJ MCCB offers reliable protection of low-voltage distribution with a compact, modular design. They offer accurate overload protection and short-circuit protection with thermal-magnetic trip units, and adjustable settings support any specific change of application demands. They are suitable for industrial and commercial panels due to their space-saving design and expansive selection of accessories.

Siemens MCCB Models – Features & Specifications Comparison Table:

Feature / Parameter	Siemens 3VA MCCB	Siemens 3VJ MCCB	Siemens 3VM MCCB
Breaking Capacity	Up to 150 kA	Up to 55 kA	Up to 55 kA (varies with frame size)
Current Range	Up to 1600 A (IEC) / up to 2000 A (UL)	20 A to 630 A	16 A to 630 A
Trip Unit Type	Thermal-magnetic (3VA1) & Electronic (3VA2)	Fixed Thermal-Magnetic (FTFM) and Adjustable Thermal Fixed Magnetic (ATFM)	Thermal-magnetic, including FTFM and ATFM options
Adjustable Protection	Fully adjustable (electronic trip units)	Limited adjustment (overload only via ATFM option)	Adjustable for overload & short circuit (via ATFM versions)
Communication Capability	Yes, options for smart monitoring and automation	Standard 3VJ: No built-in communication 3VJ2 variant: Yes – microprocessor-based with monitoring features	Limited accessory-based options
Applications	Smart buildings, industrial automation, data centers	Cost-effective panels, commercial distribution, motor protection	General industrial and commercial use with flexible accessories
Design Focus	High-end performance with modular integration	Compact and cost-effective solution	Versatile and economical design
Compliance	IEC 60947-2, UL (varies by model)	IEC 60947-2	IEC 60947-2
Best For	Projects needing advanced diagnostics and high fault capacity	Budget-focused distribution and OEM panels	Flexible installations requiring mid-range performance

Common Applications of Siemens MCCB:

Application	Why Siemens MCCB is Used
Industrial Plants & Manufacturing Units	Protects heavy machinery, motors, and production lines from overloads and short circuits.
Commercial Buildings	Safeguards main distribution panels, HVAC systems, and lighting networks.
Infrastructure Projects	Ensures uninterrupted power in airports, metro stations, railways, and large public facilities.
Renewable Energy Systems	Provides circuit protection for solar farms, wind turbines, and hybrid power systems.
Panel Boards & Switchboards	Enables OEM panel builders and contractors to ensure safe, compliant electrical distribution.
Data Centers & IT Hubs	Protects sensitive equipment with high reliability and quick fault isolation.
Marine & Offshore Installations	Operates reliably in harsh environments while ensuring operational safety.

Get Best-Selling Siemens 3VA, 3VJ & 3VM MCCBs at Latest Prices from Eleczo – Reliable Supply for OEMs, Panel Builders & Contractors

Siemens 3VA MCCB Price List - Updated Discounts:

Top Selling Siemens 3VJ MCCB Products	Discount	Final Price
Siemens 3VA1110-4EE32-0AA0 MCCB, 100A, 3P, 36kA, ATFM	62% OFF	7,601.90
Siemens Sentron 3VA1010-2ED42-0AA0 MCCB, 100A, 4P, 16kA, FTFM	62% OFF	7,786.20
Siemens 3VA1225-5EE32-0AA0 MCCB, 250A, 3P, 55kA, ATFM	62% OFF	18,642.80
Siemens Sentron 3VA1225-5GE42-0AA0 MCCB, 250A, 4P, 55kA, ATFM	62% OFF	23,620.80
Siemens Sentron 3VA1340-6EE32-0AA0 MCCB, 400A, 3P, 70kA, ATFM	62% OFF	30,002.90
Siemens Sentron 3VA2463-5HL42-0AA0 MCCB, 630A, 4P, 55kA, FTFM	60% OFF	55,952.00

Siemens 3VJ MCCB Price List - Updated Discounts:

Top Selling Siemens 3VJ MCCB Products	Discount	Final Price
Siemens 3VJ1010-3DA32-0AA0 MCCB, 100A, 3P, 25kA, FTFM	64% OFF	2,554.20
Siemens 3VJ1010-3EA42-0AA0 MCCB, 100A, 4P, 25kA, FTFM	64% OFF	3,387.60
Siemens 3VJ1225-3DA32-0AA0 MCCB, 250A, 3P, 25kA, FTFM	64% OFF	5,239.80
Siemens 3VJ1225-3EA42-0AA0 MCCB, 250A, 4P, 25kA, FTFM	64% OFF	6,899.40
Siemens 3VJ1340-3EB42-0AA0 MCCB, 400A, 4P, 25kA, ATFM	64% OFF	15,139.80
Siemens 3VJ1463-7DB32-0AA0 MCCB, 630A, 3P, 55kA, ATFM	64% OFF	18,516.60

Siemens 3VM MCCB Price List - Updated Discounts:

Top Selling Siemens 3VM MCCB Products	Discount	Final Price
Siemens 3VM1110-4EE32-0AA0 MCCB, 100A, 3P, 36kA, ATFM	62% OFF	6,688.00
Siemens 3VM1110-4GD42-0AA0 MCCB, 100A, 4P, 36kA, FTFM	62% OFF	8,056.00
Siemens 3VM1225-5EE32-0AA0 MCCB, 250A, 3P, 55kA, ATFM	62% OFF	17,331.80
Siemens 3VM1225-4GE42-0AA0 MCCB, 250A, 4P, 36kA, ATFM	62% OFF	18,821.40
Siemens 3VM1340-5EE32-0AA0 MCCB, 400A, 3P, 55kA, ATFM	62% OFF	23,537.20
Siemens 3VM1463-5EE32-0AA0 MCCB, 630A, 3P, 55kA, ATFM	62% OFF	26,385.30

Your Trusted Partner in Electrical Protection:

Siemens MCCBs are trusted by OEMs, panel builders, and electrical contractors because of their precision engineering and compliance with IEC 60947-2 and UL 489. With breaking capacities up to 150 kA and current ratings from 16 A to 3200 A, they're dependable in demanding industrial and infrastructure environments. Whether it's Zone Selective Interlocking (ZSI), adjustable trip units, or real-time monitoring through PROFIBUS, PROFINET and Modbus TCP, Siemens MCCBs go beyond conventional protection.

Siemens MCCBs combine high mechanical endurance, accessory compatibility, and fast fault isolation within milliseconds to protect circuits and protect your productivity, uptime, and investment. Choosing Siemens means equipping your electrical system with a globally proven, performance-driven, and future-ready protection device designed for both present and evolving energy demands.

Eleczo has a wide range of Siemens MCCBs with detailed specs, genuine warranties, and competitive pricing. Whether you’re an OEM, contractor, or distributor, Eleczo ensures a smooth buying experience with bulk order support, worldwide delivery, and expert assistance to help you choose the right MCCB for your project requirements.

At Eleczo, along with Siemens MCCBs, you can also explore top brands like L&T MCCB, Schneider MCCB, Havells MCCB and more with genuine products, competitive prices, and secure delivery options.